# Sketch won’t highlight

**URL:** <https://discourse.shapr3d.com/t/sketch-won-t-highlight/40671>\
**Category:** Modeling Questions\
**Created:** [April 18, 2026, 4:07am UTC](https://discourse.shapr3d.com/t/sketch-won-t-highlight/40671 "2026-04-18T04:07:50Z")\
**Posts on this page:** 20\
**Page:** 1

<div class="post-metadata">

**Author:** ![tem209](https://avatars.discourse-cdn.com/v4/letter/t/c2a13f/32.png) [@tem209](https://discourse.shapr3d.com/u/tem209)\
**Post date:** [April 18, 2026, 4:07am UTC](https://discourse.shapr3d.com/t/sketch-won-t-highlight/40671/1 "2026-04-18T04:07:50Z")

</div>

![IMG_0167](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/0/5/05755e92eabb993212ba6a15f77befdd83731b5d.jpeg)I was making this sketch and I saw that it wouldn’t let certain parts extrude, when I had fixed the part that wasn’t connected it wouldn’t let me extrude the piece anymore. Is there a way I could fix this problem?

---

<div class="post-metadata">

**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\
**Post date:** [April 18, 2026, 4:15am UTC](https://discourse.shapr3d.com/t/sketch-won-t-highlight/40671/2 "2026-04-18T04:15:41Z")

</div>

Somewhere there is a line that is not connected.

---

<div class="post-metadata">

**Author:** ![tem209](https://avatars.discourse-cdn.com/v4/letter/t/c2a13f/32.png) [@tem209](https://discourse.shapr3d.com/u/tem209)\
**Post date:** [April 18, 2026, 4:31am UTC](https://discourse.shapr3d.com/t/sketch-won-t-highlight/40671/3 "2026-04-18T04:31:07Z")

</div>

That’s the thing I’ve closed all of the part that weren’t connected, should I just redraw the whole thing from scratch

---

<div class="post-metadata">

**Author:** ![spencersmitty](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/spencersmitty/32/35302_2.png) [@spencersmitty](https://discourse.shapr3d.com/u/spencersmitty)\
**Post date:** [April 18, 2026, 4:39am UTC](https://discourse.shapr3d.com/t/sketch-won-t-highlight/40671/4 "2026-04-18T04:39:50Z")

</div>

feel free to upload your file, ill try to diagnose it

---

<div class="post-metadata">

**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\
**Post date:** [April 18, 2026, 4:47am UTC](https://discourse.shapr3d.com/t/sketch-won-t-highlight/40671/5 "2026-04-18T04:47:27Z")

</div>

If you select segments/ edges and then check the ends by zooming in and look for a gap. Also on acute bends, look for a tiny loop instead of a corner. Zoom in close as you can.

Also the interior lines are not functional to a closed sketch.

---

<div class="post-metadata">

**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\
**Post date:** [April 18, 2026, 4:48am UTC](https://discourse.shapr3d.com/t/sketch-won-t-highlight/40671/6 "2026-04-18T04:48:35Z")

</div>

Lastly make sure all of your lines are on the same plane. You can also project the lines to a plane and that might resolve it.

---

<div class="post-metadata">

**Author:** ![tem209](https://avatars.discourse-cdn.com/v4/letter/t/c2a13f/32.png) [@tem209](https://discourse.shapr3d.com/u/tem209)\
**Post date:** [April 18, 2026, 4:56am UTC](https://discourse.shapr3d.com/t/sketch-won-t-highlight/40671/7 "2026-04-18T04:56:42Z")

</div>

I can share it because I don’t know how to upload it if that’s fine

---

<div class="post-metadata">

**Author:** ![spencersmitty](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/spencersmitty/32/35302_2.png) [@spencersmitty](https://discourse.shapr3d.com/u/spencersmitty)\
**Post date:** [April 18, 2026, 5:03am UTC](https://discourse.shapr3d.com/t/sketch-won-t-highlight/40671/8 "2026-04-18T05:03:53Z")

</div>

yes.. of course thats fine. just follow oregonerds tips and hopefully you can find the issue

---

<div class="post-metadata">

**Author:** ![spencersmitty](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/spencersmitty/32/35302_2.png) [@spencersmitty](https://discourse.shapr3d.com/u/spencersmitty)\
**Post date:** [April 18, 2026, 5:05am UTC](https://discourse.shapr3d.com/t/sketch-won-t-highlight/40671/9 "2026-04-18T05:05:31Z")

</div>

you might try drawing random lines in the trouble area and see if it suddenly turns blue.. then you can narrow it down from there

---

<div class="post-metadata">

**Author:** ![tem209](https://avatars.discourse-cdn.com/v4/letter/t/c2a13f/32.png) [@tem209](https://discourse.shapr3d.com/u/tem209)\
**Post date:** [April 18, 2026, 5:05am UTC](https://discourse.shapr3d.com/t/sketch-won-t-highlight/40671/10 "2026-04-18T05:05:32Z")

</div>

I had seen people mention what oregonerd said on other posts but I couldn’t find the issue when I had zoomed in. Here’s the link

> **[Shapr3D - Project](https://app.shapr3d.com/p/54fa5a5f-25bf-4114-b6a7-a9adecf5c5ea)**
>
> Review designs together. View models and add comments directly to your 3D design.

---

<div class="post-metadata">

**Author:** ![Xdrakosha](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/xdrakosha/32/24881_2.png) [@Xdrakosha](https://discourse.shapr3d.com/u/Xdrakosha)\
**Post date:** [April 18, 2026, 8:52am UTC](https://discourse.shapr3d.com/t/sketch-won-t-highlight/40671/11 "2026-04-18T08:52:49Z")

</div>



---

<div class="post-metadata">

**Author:** ![tem209](https://avatars.discourse-cdn.com/v4/letter/t/c2a13f/32.png) [@tem209](https://discourse.shapr3d.com/u/tem209)\
**Post date:** [April 18, 2026, 11:21am UTC](https://discourse.shapr3d.com/t/sketch-won-t-highlight/40671/12 "2026-04-18T11:21:52Z")

</div>

Thank you, I wonder why it was like that

---

<div class="post-metadata">

**Author:** ![Xdrakosha](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/xdrakosha/32/24881_2.png) [@Xdrakosha](https://discourse.shapr3d.com/u/Xdrakosha)\
**Post date:** [April 18, 2026, 1:54pm UTC](https://discourse.shapr3d.com/t/sketch-won-t-highlight/40671/13 "2026-04-18T13:54:36Z")

</div>

> [@tem209](#):
>
> I wonder why it was like that

This time that is a secret for me to. Looks like a glitch.

---

<div class="post-metadata">

**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\
**Post date:** [April 18, 2026, 1:58pm UTC](https://discourse.shapr3d.com/t/sketch-won-t-highlight/40671/14 "2026-04-18T13:58:18Z")

</div>

Right? The fix makes no sense.

---

<div class="post-metadata">

**Author:** ![tem209](https://avatars.discourse-cdn.com/v4/letter/t/c2a13f/32.png) [@tem209](https://discourse.shapr3d.com/u/tem209)\
**Post date:** [April 18, 2026, 2:44pm UTC](https://discourse.shapr3d.com/t/sketch-won-t-highlight/40671/15 "2026-04-18T14:44:55Z")

</div>

The only it has now is that the part that got fixed runs into a operations failed prompt when trying to extrude

---

<div class="post-metadata">

**Author:** ![Xdrakosha](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/xdrakosha/32/24881_2.png) [@Xdrakosha](https://discourse.shapr3d.com/u/Xdrakosha)\
**Post date:** [April 18, 2026, 3:22pm UTC](https://discourse.shapr3d.com/t/sketch-won-t-highlight/40671/16 "2026-04-18T15:22:50Z")

</div>

> [@tem209](#):
>
> failed prompt when trying to extrude

That’s correct behavior. Shapr3D forbids non-manifold bodies.

---

<div class="post-metadata">

**Author:** ![Oregonerd](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/oregonerd/32/8012_2.png) [@Oregonerd](https://discourse.shapr3d.com/u/Oregonerd)\
**Post date:** [April 18, 2026, 4:17pm UTC](https://discourse.shapr3d.com/t/sketch-won-t-highlight/40671/17 "2026-04-18T16:17:15Z")

</div>

The program knows where the problem is. Sure would be nice if the error could be highlight by the program. Which is one of a few peoples reasons for shunning Shapr.

---

<div class="post-metadata">

**Author:** ![tem209](https://avatars.discourse-cdn.com/v4/letter/t/c2a13f/32.png) [@tem209](https://discourse.shapr3d.com/u/tem209)\
**Post date:** [April 18, 2026, 5:04pm UTC](https://discourse.shapr3d.com/t/sketch-won-t-highlight/40671/18 "2026-04-18T17:04:42Z")

</div>

idk how you are able to find these so well but you’re a legend

---

<div class="post-metadata">

**Author:** ![Xdrakosha](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/xdrakosha/32/24881_2.png) [@Xdrakosha](https://discourse.shapr3d.com/u/Xdrakosha)\
**Post date:** [April 18, 2026, 5:17pm UTC](https://discourse.shapr3d.com/t/sketch-won-t-highlight/40671/19 "2026-04-18T17:17:57Z")

</div>

> [@Oregonerd](#):
>
> Sure would be nice if the error could be highlight by the program.

Sure. That would be helpful.

But I must emphasize that users usually create this kind of problem themselves 🙂

What I mean is that if a user pays more attention to modeling quality, this kind of problem would never arise. I personally only encounter situations like this when fixing other people’s mistakes 🙂

* * *

For example, here it is quite obvious that the problem is caused by the new spline being connected to the wrong point while creating the sketch.

* * *

However, there are also cases where the sketch is imported with defects

---

<div class="post-metadata">

**Author:** ![Xdrakosha](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/xdrakosha/32/24881_2.png) [@Xdrakosha](https://discourse.shapr3d.com/u/Xdrakosha)\
**Post date:** [April 18, 2026, 5:21pm UTC](https://discourse.shapr3d.com/t/sketch-won-t-highlight/40671/20 "2026-04-18T17:21:46Z")

</div>

> [@tem209](#):
>
> idk how you are able to find these so well

In this exact situation, dividing the sketch with additional lines is the fastest way to find the problematic area. Once I narrowed it down to a few possible problem spots, I just checked those nodes manually.

[Next page](https://discourse.shapr3d.com/t/sketch-won-t-highlight/40671.md?page=2)